He explained the ammonia was measured at 500 ppm at the time of the alarm.

Once the levels dropped down, a refrigeration specialist was able to enter the facility, and patrons were allowed to re-enter the building around 9:30 p.m.

There were no injuries reported.

The Comox Valley Regional district confirmed following an investigation, the issue was resolved and the facility is at full operations Friday morning.

The leak was discovered in a high pressure cut out at the safety monitor in the ammonia system.

“Our staff at the facility are well trained and responded to the situation immediately to ensure the safety of the public and staff,” said Jesse Ketler, chair of the Comox Valley Sports Commission in a press release.

“Because of the good decisions of all involved, this situation was quickly and safely resolved.”

The system was serviced in July 2019 and the CVRD confirmed maintenance is up to date. Technical Safety BC and WorkSafe BC will conduct a follow-up investigation, which is standard protocol anytime an ammonia alarm is triggered.

In October 2017, three people died following an ammonia leak at a hockey arena in Fernie.